GREX GBN18-40 18 Gauge 1-9/16-Inch Length Galvanized Brad Nails (5,000 per box) 18-Gauge galvanized brad nails Designed to use with 1832, 1850 and BS5032 Grex staplers and nailer Compact and lightweight design for improved maneuverability Allen key storage on nailer for quick convenient access Measures 1-9/16 inches length